CCVP GWGK Quick Reference Sheets

Survivable Remote Site Telephony

If you were to design a modern VoIP network, your client would probably ask for a voicemail system, connections to the PSTN, remote sites, and so on. The first question you would be asked as the designer is what happens if we lose our network? How will we make and receive calls? Your response can be this: Because a Cisco solution was installed, there is no problem in the event of network failure. Survivable Remote Site Telephony (SRST) provides Cisco IP phones a backup path in the event of network failure, but only if they are connected to a local Cisco device. SRST makes sure your employees have at least basic phone service. When IP phones lose connectivity to all CallManagers, SRST uses the GW until connectivity ...